Bhagalpur vs Dehradun
Side-by-side air quality comparison between Bhagalpur and Dehradun.
Live AQI from Open-Meteo CAMS (~45 km global model, updated hourly). Multi-year history from CPCB station data via aqinow.co pipeline (2016–2024, station-level daily records).
AQI Comparison
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Bhagalpur | Dehradun |
|---|---|---|
| PM2.5(µg/m³) | 56.20 | 14.40 |
| PM10(µg/m³) | 62.60 | 14.60 |
| NO₂(µg/m³) | 14.10 | 25.40 |
| SO₂(µg/m³) | 24.00 | 4.10 |
| O₃(µg/m³) | 121.00 | 71.00 |
| CO(µg/m³) | 527.00 | 350.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bhagalpur averaged an AQI of 164 while Dehradun averaged 106 — a 58-point (55%) gap, with Bhagalpur the more polluted and Dehradun the cleaner of the two. On 773 days when both cities reported, Dehradun was cleaner on 666 of them; the average daily gap was 89 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Bhagalpur logged 1.9% Severe days and 19.9% Good-or-Satisfactory days; Dehradun was 0% Severe and 62.8% Good-or-Satisfactory. Longest clean-air streaks: Bhagalpur 20 days, Dehradun 41 days.
Year-over-year progress
Bhagalpur has improved by 123 AQI points (42.9%) from 2021 to 2024; Dehradun has worsened by 19 AQI points (21.8%) over the same window. The worst recorded day for Bhagalpur reached AQI 451 at Mayaganj (BSPCB) on 2022-12-30; Dehradun hit AQI 327 at Doon University (UKPCB) on 2024-01-19.
Station-level disparity
Bhagalpur spans 2 CPCB stations with a 26-point spread (min 170, max 196); Dehradun spans 1 stations with a 0-point spread (min 98, max 98).
Verdict
🏆 Dehradun has better air quality with an AQI of 24 compared to Bhagalpur's 94. That's a significant difference of 70 points.